Industrial Chiller Low-Pressure Alarms: Emergency Investigation

Water-cooled industrial chiller with two compressors and connected chilled-water piping.

CrystalAir investigated low-pressure and anti-freeze alarms on a factory’s water-cooled chiller. Independent temperature checks identified incorrect controller feedback. The manufacturer subsequently replaced and repositioned the probes, bringing the controller readings into agreement with the installed pipe thermometer.

Kitchen Exhaust Fan MCB Tripping: Under-Warranty Investigation

Kitchen exhaust fan troubleshooting with skylift access and abnormal voltage reading

A restaurant kitchen exhaust fan began tripping the MCB approximately four months after installation. During the under-warranty motor replacement, CrystalAir detected an abnormal 255.1V phase-to-neutral reading before commissioning and stopped operation pending further power supply investigation.